Version 0.95 of this document was the summary of the complete CASL Tentative Design [LD96], available since December 1996.
CoFI Note S-1 [Sem97a] extended the cited Tentative Design Language Summary with annotations concerning some questions and doubts raised by the Semantics task group, in connection with their development of a formal semantics for CASL, see CoFI Note S-4 [Sem97b]; CoFI Note S-1 has since been updated with an indication of how the issues were expected to be resolved.
Version 0.96 was the first draft of the Summary of the CASL Proposed Design, resolving almost all the issues that had been raised concerning the Tentative Design.
Version 0.97 [LD97c] incorporated some relatively minor enhancements to the Proposed Design, suggested shortly after version 0.96 became available (April 1997). CoFI Note S-6 [Sem97c] provided a completed draft semantics for this version. Version 0.97 was reviewed by IFIP WG1.3 [IFI97], resulting in tentative approval of the design. Version 0.98 of this Summary showed just which bits of CASL were subject to reconsideration, in view of the referees' comments [LD97a] and the recommendations made by the CoFI Semantics Task Group [Sem97c].
The present version 0.99 summarizes what should be the final CASL Design, now also incorporating concrete syntax (the concrete syntax of views and architectural specifications is, however, still somewhat tentative). The preliminary response by the Language Design task group to the IFIP WG1.3 referees [LD97a] is now to be expanded to clarify the extent to which the referees' recommendations have been followed. Comments on the various versions have been sent to the mailing list subscribers, and are accessible in the mailing list archives for 1996, 1997, and 1998. The various language design notes are also accessible.